Prometheus is a prequel, in a sideways sort of fashion, to Scott's 1979 Alien original--or at least it's a long-distant stage setter for that story. Also includes Alien, Aliens, Alien 3, Alien Resurrection and a gazillion extras that Alien fans will watch over and over. For example, it includes both the 1979 theatrical release version of Alien as well as the 2003 Ridley Scott Director's Cut version. Today only.